Articles tagged with Carbon Emissions
A study by University of Auckland researchers found that electric vehicle (EV) adoption is linked to increased carbon dioxide emissions unless countries clean up their electricity grids. Only when renewable energy sources account for approximately 48% of global electricity generation will EVs contribute to reducing CO₂ emissions.
A new study highlights the disproportionate impact of climate change on marginalized communities, with residents emitting significantly less carbon than the national average yet suffering disproportionately due to historical and systemic inequalities. Social workers are essential in driving society toward a future that reduces dependen...
Researchers at the University of Surrey developed a cost-effective method for removing CO2 from the air and converting it into synthetic fuel. The Dual-Function Material (DFM) process has been shown to be financially competitive with established industry methods, offering a promising route to decarbonize industries.
A study estimated that healthcare travel generates approximately 35.7 megatons of CO2e annually in the US, accounting for about 6% of national healthcare-related emissions. The study found that patient travel in rural areas resulted in higher emissions per trip compared to urban areas
A dynamic framework to measure market power in wholesale electricity markets has been developed by researchers, accounting for start-up costs and other unit-level operating constraints. The study found that rooftop solar penetration increases led to sizable boosts in fossil fuel plant profitability, as competition softened at sunset.
The SwRI H2-ICE2 consortium aims to refine the performance and efficiency of hydrogen internal combustion engine vehicles. The two-year program will test the vehicle's capabilities under various real-world conditions, with a focus on commercial viability.
Scientists have identified critical gaps in existing monitoring systems and proposed technological advancements to improve global carbon stocktake accuracy. Next-generation satellites with enhanced precision and spatial resolution could revolutionize carbon emission tracking, enabling countries to better meet their climate commitments.
A new study published in Climate Policy highlights the significant cost disparity between household electricity and e-fuel for long-distance mobility. The research shows that the wealthiest 1% of EU citizens are responsible for 66% of air travel, while the majority emit less than 0.1 ton of CO2 equivalent emissions per year.
Researchers developed a recycling process for cement waste into a low-carbon, high-strength material that can replace traditional Portland cement. The new cement blend reduces carbon intensity and enables new uses for construction and demolition waste.
Shrinking Andean glaciers pose a significant threat to the water supplies of 90 million people, with thinning rates 35% faster than the global average. Effective management of water resources and drastic reduction in carbon emissions are crucial to mitigate this impact.
An international team of glacier scientists has formed the Glacier Stewardship Program to address the challenges of glacier loss. The program aims to explore new technical approaches, mitigate impacts on communities, and establish a biobank to save glacier biodiversity.
The regulations could roughly double emissions reductions from the power sector in 2040, falling 51% from 2022 levels if maintained, compared to 26% without the rules. The vast majority of reductions would come from accelerating coal-fired plant retirements.
Researchers have successfully demonstrated the environmental benefits of turning CO₂ emissions into key chemical ingredients for essential consumer goods. The study found that waste CO₂ can be part of the solution rather than the problem, reducing GWP by around 82% for paper mill emissions.
New research from the University of Kansas found that completing a greenhouse gas emission inventory indeed moves the needle toward mitigation, with cities reducing their CO2 emissions by about 22 fewer pounds per capita. The addition of sustainability staff did not show a statistically significant reduction.
Wealthy individuals, despite being major contributors to global emissions, possess three positive climate capabilities: investing in green technologies, knowledge about climate change, and social influence. Researchers suggest harnessing their potential to accelerate the UK's transition to net-zero carbon emissions.
Researchers from the University of Michigan found that line drying clothes could save households up to $2,100 in energy costs over their lifetime. The study also highlighted the importance of behavioral changes, such as running dryers during off-peak hours, and the varying emissions due to different regions' energy sources.
Countries are urged to update their National Determined Contribution plans to address plastic waste and reduce greenhouse gas emissions. The team suggests specific goals, such as cutting plastic production and incentivizing sustainable manufacturing.
A new study from the University of Surrey suggests that hotels can significantly reduce their environmental impact by prioritizing vegetarian and plant-based options on restaurant menus. By strategically framing these dishes as first choices, hotels can guide guests toward more sustainable food choices.
Researchers at Nagoya University found that Japan's concrete structures, including buildings and infrastructure, absorb around 14% of the CO2 emissions generated during cement production. This process, known as carbonation, enables concrete to function as a carbon sink, even though it absorbs less CO2 than forests.
A new study led by Colorado State University found that agricultural nitrogen fertilizer is the primary cause of seasonal carbon cycle swings. This discovery adds to scientific understanding of the carbon cycle and could help inform climate change mitigation strategies.
A new study finds that countries with large economic and political disparities have lower emissions than more democratic nations. Increased consumption leads to higher emissions in societies with greater equality. Technological changes are needed to mitigate climate issues.
Charité has reduced annual CO2 emissions from anesthesia by over 80% since 2018 by switching to more environmentally friendly anesthetics. The hospital's efforts have resulted in significant savings and no medical drawbacks for patients.
A study by Florida Atlantic University investigated how removing dead wood could reduce wildfire risks and enhance carbon storage. The research found that combining physical harvesting with thinning significantly reduced wildfire risks, while lowering carbon emissions and offering carbon sequestration through products like biochar.
A new study from USC Dornsife finds that LA's urban greenery absorbs up to 60% of daytime fossil fuel CO2 emissions in spring and summer, providing valuable insights into the impact of trees on air quality. The research provides data-driven insights for future planting efforts and informs the USC Urban Trees Initiative.
Researchers at Tulane University have found a more efficient method for producing ethylene oxide using silver catalysts with nickel additions, eliminating the need for toxic chlorine. This breakthrough could significantly reduce greenhouse gas emissions and improve production safety.
A new study reveals that UK peatland fires are responsible for up to 90% of annual fire-driven carbon emissions, with emissions set to rise by at least 60% if the planet warms by 2°C. Researchers found that rewetting peatlands can help reduce carbon emissions and mitigate climate change.
A study at Michigan Medicine found that using less polluting inhaled anesthetic agents reduced CO2 equivalents by over 14 kg per case. This resulted in a 50% decrease in harmful emissions without impacting patient safety or outcomes.
A novel electrocatalyst has been developed to efficiently convert captured carbon dioxide into green energy by producing methanol. The dual-site catalyst increases the production rate and results in a higher Faradaic efficiency of 50%, significantly improving over previous single-site catalysts.
Researchers at Institute of Science Tokyo developed porous organic crystals with ultrahigh-density amines, achieving fast CO2 adsorption and high thermal stability. The unique 2.5-dimensional skeleton reduces the cost for CO2 separation from flue gases.
A new study finds that methane emissions are being underreported by at least 170 million to 3.3 billion tons of carbon over a decade, depending on the metric used. Companies may have underestimated their carbon footprint by as much as the annual carbon emissions of the UK in 2022.
The Ukraine war led to a significant increase in global aviation carbon dioxide emissions due to planes taking longer routes around Russian airspace. On average, flights used 13% more fuel, with the impact being greatest for Europe-Asia and North America-Asia flights.
A new international study suggests that conserving and restoring peatlands and mangroves in Southeast Asia can mitigate more than 50% of the region's land-use carbon emissions. These ecosystems store significant amounts of carbon, making them crucial natural carbon sinks.
A new study finds that reducing sulphur in the air can lead to increased natural emissions of methane from wetlands, pushing emissions higher. The study suggests that current targets to reduce human-caused methane emissions need to be more stringent.
Researchers found that cellular concrete requires less cement, generates fewer air pockets, and reduces overall weight, making it suitable for seismic zones. This material's production results in notable reductions in energy consumption and carbon dioxide emissions.
A new study projects global sea-level rise between 0.5 and 1.9 meters by 2100 under a high-emissions scenario, with the very likely range being 90% probability for the event to occur. The fusion approach combines strengths of existing models with expert opinions, offering a clearer picture of future sea-level rise.
Researchers identified an unknown family of microbes uniquely adapted to tropical peatlands, with a dual role in the carbon cycle. These microbes can either stabilize or intensify climate change by releasing greenhouse gases like CO2 and methane.
Researchers have developed a Zn-decorated GaN nanowire catalyst that efficiently converts CO2 and H2O into methane and hydrogen peroxide under light irradiation. The catalyst achieves high conversion rates with 93.6% selectivity and maintains activity for over 80 hours, providing a practical solution for sustainable fuel production.
Researchers have developed a sustainable alternative to traditional fertilizer production by harnessing the Earth's natural heat and forces to cook up ammonia. The new recipe uses iron-rich rocks and nitrogen-laced water, producing about 1.8 kg of ammonia per ton of olivine, with no energy input or CO2 emission.
China's particulate matter emissions have followed an environmental Kuznets curve, peaking in the mid-1990s. However, finer PM fractions and carbonaceous components have increased due to shifts in industrial energy usage and residential sector transitions. This poses new challenges for air quality policies.
The article reveals that larger EVs are weighing more than conventional cars and require greater critical minerals to produce, delaying efforts to decarbonize the electricity grid. The growing size of EVs is also making waste processing and recycling hazardous
Researchers warn of environmental risks posed by snakes and insects in imported ornamental plants, calling for improved regulations and sustainable practices. The study highlights the difficulty of monitoring and controlling pests due to high-volume trade, posing a threat to ecosystems and human health.
A new study finds that industrial robots can significantly lower CO2 emissions in manufacturing exports. However, a U-shaped relationship is uncovered, where emissions initially drop before plateauing, highlighting the need for careful integration of robotics into manufacturing systems.
A new study published in Nature Communications provides fresh insights into China's carbon removal capacity through land-use, land-use change, and forestry. The researchers used an improved modeling approach to estimate the country's carbon removal from land-use changes, offering more accurate projections for future carbon removal.
Researchers estimate that human-made products store around 400 million tons of fossil carbon annually, equivalent to 9% of extracted fossil carbon. Recycling and increasing product lifetime can help reduce waste streams, while enacting policies to minimize landfill discharge is crucial.
Researchers at Osaka Metropolitan University identified clogging in a geothermal well due to accidental venting, highlighting the need for regular inspection and monitoring of water quality. The study emphasizes the importance of geochemical analysis of groundwater for stable and widespread use of aquifer thermal energy storage systems.
Scientists have developed a model to capture at least 100 million metric tons of CO2 annually from fish farms, potentially offsetting their carbon footprint. The approach, which involves adding iron to increase alkalinity and enhance carbonate saturation levels, could be cost-effective and efficient.
Researchers have developed a 3D concrete printing system that captures and stores carbon dioxide, offering a promising alternative to traditional cement-based construction methods. The innovation improves printability, increases strength, and enhances mechanical properties, resulting in stronger and more eco-friendly buildings.
A new study projects China's non-CO2 mitigation potentials and costs by 2060, finding that deep CH4 mitigation can enhance climate benefits. Non-CO2 reductions are expected to be less costly than CO2 reductions, with a 2.3-4.3 times greater climate benefit.
A new study by Finnish researchers found that recycled plastic railway sleepers can significantly reduce carbon emissions, with potential savings of up to 3,610 tCO2e per year. The production process for these plastics requires less energy and generates fewer emissions than traditional materials like steel and concrete.
International team of scientists calculates total land area for climate action plans, revealing a big divide between expected and actual potential. The plans could lead to major conflicts over land use, exacerbating problems with high-intensity agriculture and unsustainable land use.
A University of Queensland-led study reveals greenhouse gas emissions from tourism have grown more than 2 times faster than the rest of the global economy. Tourism accounts for 9% of world's total emissions, with annual increases expected to double in carbon footprint every 20 years.
A new monitoring system uses 'virtual sensing' to accurately estimate CO₂ and NOx emissions based on driving behavior. The system provides personalized environmental impact assessments, empowering drivers to manage their emissions.
A new catalyst converts methane into polymers at room temperature and atmospheric pressure, making it easier to deploy at sites of methane production. The catalyst also enables the creation of sealants to heal cracks in natural gas pipes, potentially reducing methane leakage.
A seminal life cycle assessment (LCA) study found that diagnostic services generate the equivalent of nearly 1,100 gas-powered cars annually, with CT scans accounting for the majority of GHG emissions. The team identified areas to reduce energy consumption and greenhouse gas emissions without compromising patient care.
A new study suggests that a significant proportion of UK holiday flights could be replaced with rail travel, resulting in substantial reductions in carbon emissions. The researchers found that most British people do not travel far for their holidays, making rail a viable alternative for short-haul flights.
A new microwave-assisted synthesis route has improved the performance of a coordination polymer photocatalyst, achieving a record-breaking value for CO2-to-formate conversion with a nearly ten-fold increase in apparent quantum yield. The improvements are attributed to well-crystallized material and surface area increases.
Shiva Shirani, a postdoctoral researcher at the University of Malaga, has won the Innovandi NanoCem PhD Prize 2024 for her research on low-carbon cement alternatives. Her work uses advanced synchrotron imaging techniques to optimize cement micro- and meso-structures.
A new study by the University of Oxford's Department of Physics shows that relying on natural carbon sinks to offset CO2 emissions from fossil fuels will not stop global warming. Governments and corporations are increasingly turning to these natural sinks to meet climate goals, but this approach is flawed.
A new study suggests that India's growing technology innovation and economic expansion will likely reduce its efforts to transition to renewable energy sources. The country's high demand for energy and reliance on non-renewable sources may outweigh the benefits of clean energy.
Professor Susanne Neuer receives Excellence Professorship for her research on the biological carbon pump, a crucial mechanism in absorbing CO2 from the atmosphere. Her work highlights the importance of tiny ocean organisms in forming sinking particles that transport carbon into the deep ocean.